Is there a way for synology to enter like Linux single-user mode to repair system files?

[Alliot]

I modified a file of the system by mistake (backup was done), and I need to restore the backup file to recovery my synology system, but the system cannot be booted normal.

I want to know  is there a way for synology to enter like Linux single-user mode to repair system files?

thanks for every reply ~

[Alliot]

I have solved this problem.

mount on Linux(ext4 filesystem),then recovery the file.